Relationship between Thickness and Firmness of Mesocarp on Oil Palm Bunch Component Relationship between Thickness and Firmness of Mesocarp on Oil Palm Bunch Component
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Abstract
Harvesting oil Palm’s fresh fruit bunch (FFB) at right stage of ripeness is to ensure optimum quality, quantity of oil production, and profitability of the industry. Therefore, the objective of this research was to determine the relationship between thickness and firmness of mesocarp of oil palm bunch component at different of maturity stages. Oil palm FFB was harvested and grouped into three maturity stages by numbering the fruits detached from bunch including from 1 to 10, 11 to 30, and 30 to 40 fruits, respectively. The inner and outer fruitlets of spikelet were collected from bottom, middle, and top parts of FFBs the samples. Fruitlets of FFB samples were used to thickness of mesocarp, firmness, percentage of oil per fruit, and the percentage of oil per bunch. Results of current study showed that the firmness value of the bunch, for 30 to 40 fruits was related to the top part of the bunch (outer spikelet) with 49.43 newton (N). The correlation between the percentage of oil per brunch and thickness was r = 0.57 and the average thickness value of fruits in middle part of bunch (outer spikelet) was 0.8 centimeter. Moreover, the relationship between percentage of oil per fruit and the thickness values of mesocarp in different regions were correlated which represents that higher thickness leads to higher percentage of oil per fruit. Ripeness stages of oil palm bunch affect the percentage of oil palm per bunch.
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